"Video addicts/hobbyists or folks who have DLSRs"
I think it's more pirates who downloaded the hell from everywhere, and trying to backup it to the cloud for free or almost... like they did use GMail as storage before.
Heavy photo/video users are probably using a DAS/NAS and specific cloud backup offers, when needed, as they need something more reliable than services that could cut your storage at will.
RAW is the only real option to store photos, 16-bit TIFFs are not usually smaller and already lost full sensor data, and JPEGs will lose too much useful data - it's just an output format for display.
Biting the hand that feeds IT
